EP0105818A1 - Diode mounting arrangement - Google Patents

Diode mounting arrangement Download PDF

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Publication number
EP0105818A1
EP0105818A1 EP83440042A EP83440042A EP0105818A1 EP 0105818 A1 EP0105818 A1 EP 0105818A1 EP 83440042 A EP83440042 A EP 83440042A EP 83440042 A EP83440042 A EP 83440042A EP 0105818 A1 EP0105818 A1 EP 0105818A1
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EP
European Patent Office
Prior art keywords
diodes
diode
light
printed circuit
terminals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83440042A
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German (de)
French (fr)
Inventor
Francis Looten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thery-Hindrick SA
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Thery-Hindrick SA
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Filing date
Publication date
Application filed by Thery-Hindrick SA filed Critical Thery-Hindrick SA
Publication of EP0105818A1 publication Critical patent/EP0105818A1/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/095—Traffic lights
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0472—Traffic signs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components

Definitions

  • the invention relates to a light warning sign. It will find its application in particular in the field of signaling, and more particularly, but not exclusively, in terms of road traffic for the production of traffic lights and light panels regulating the passage of pedestrians.
  • One of the solutions consists in placing in the supply circuit, in addition to the voltage transformer, a current rectifier which will supply the diodes with direct current, thus ensuring a permanent emission of light by the diodes.
  • the main object of the present invention is to provide a luminous warning panel, comprising light-emitting diodes which are supplied directly by an alternating voltage, without requiring the presence of a rectifier and, authorizing at any time the operation of half of the diodes.
  • the diodes are connected in parallel and upside down on the electrical supply circuit. At each alter nance of the AC voltage, only half of the diodes are conductive and emit light. In the case of electrical networks whose frequency is 50 or 60 Hertz, the flicker is practically imperceptible to the human eye because of the retinal persistence.
  • the parallel mounting of the diodes avoids stopping the operation of the panel even if one or more diodes become faulty. Indeed, permanent short circuits in these diodes are impossible due to their internal structure and the low impedance of the power supply circuit; an abnormal semiconductor function volatilizes and its deactivation is automatic.
  • pairwise and head-to-tail mounting a uniform distribution of light is obtained along the entire shape of the light signal to be transmitted because, in the vicinity of a diode mounted in one direction, there is always at least one diode mounted in the other direction.
  • Another aspect of the present invention is the self-protecting arrangement for the diodes.
  • the diodes which are not conductive during an alternation are subjected to a reverse voltage which corresponds to the residual voltage at the terminals of conductive sdiodes at this time, generally of the order of 2 V.
  • This reverse voltage is compatible with the characteristics of the diodes, and therefore cannot increase dangerously during the operation of the light panel.
  • the overvoltages due to the sectors are symmetrically clipped by all of the two diode networks. Unlike filament lamps, these turkeys can temporarily withstand high overcurrents without damage.
  • Another object of the present invention is to provide a ' warning light panel whose electrical circuit is simplified since it only comprises a transformer.
  • the diodes directly emit light whose spectrum corresponds to the colors used by road traffic or public use, which eliminates all the colored filter devices, of diffusion, focusing or protection.
  • the light emitted is therefore transmitted in an optimal manner.
  • the angle of diffusion is defined by the convex shape of the transparent packaging of the diode.
  • different packaging models can be chosen to produce more or less narrow distribution cones.
  • the convex part of the diodes protrudes slightly from the front panel of the warning light.
  • This panel can be made of metal or plastic. Its exterior color will preferably be matte black to improve contrast and eliminate stray reflections.
  • Another advantage of the invention is to propose a light warning panel comprising in particular a printed circuit, the manufacture of which has been simplified by authorizing the printing of the entire circuit on a single face of the support.
  • the warning light panel intended in particular for road signs comprising light-emitting diodes arranged in the form of the desired light signal, and an electrical supply circuit, is characterized in that the voltage across the diodes is alternating and that the diodes are connected in parallel and upside down to ensure operation at all times ; part of the diodes.
  • Figure 1 shows schematically an electrical supply circuit of a warning light panel.
  • This circuit notably includes a voltage transformer 1, the primary terminals of which are connected to the general supply network.
  • the secondary terminals 2 and 3 of the transformer 1 are connected to the electrical supply circuit of the light panel, respectively to the branches 4 and 5 of this supply circuit, to which the light-emitting diodes arranged in parallel and upside down depending on the shape of the desired light signal.
  • the diodes are therefore mounted in parallel between branches 4 and 5 of the circuit and upside down, that is to say that they are grouped in pairs of diodes adjacent to each other, and that, in the same pair, one diode is mounted in one direction and the other diode is mounted in the other direction.
  • Figure 1 shows schematically, by way of example, two pairs of diodes 6 and 7 mounted according to the invention. However, this illustration should in no case limit the number of pairs of diodes to a determined value.
  • Each pair of diodes for example diodes 6 and 7, comprise a light-emitting diode 8 whose anode 9 is connected to branch 4 of the supply circuit, and whose cathode-10 is connected to branch 5 of the same circuit , and a light emitting diode 11 whose anode 12 is connected to branch 5, and whose cathode 13 is connected to branch 4 of the supply circuit.
  • the diode 8 whose anode 9 is at a potential greater than the cathode 10 is crossed by a current and emits light .
  • the diode 11 whose cathode 13 is at a potential greater than the anode 12 is not conductive during this same alternation.
  • the potential of the branch 5 becomes greater than the potential of the branch 4 and the diode 11 becomes conductive while the diode 8 is no longer.
  • the voltage at the terminals of diodes 8 and 11 is indeed alternative and, at all times, there are conductive diodes, either the diodes connected like diode 8, or the diodes connected like diode 11 Furthermore, it does not have any drawback of supplying alternating current to light-emitting diodes provided by the manufacturer to operate under direct voltage.
  • a panel according to the invention will include a high number of diodes and the failure of one or more of them will have a negligible influence on the operation of the circuit. Indeed, a faulty diode immediately volatilizes and the impedance of the secondary circuit practically does not vary given the large number of diodes connected in parallel.
  • this assembly self-protective for the diodes, requires a very low voltage between the secondary terminals 2 and 3 of the transformer since these are directly connected to the terminals of the diodes which require a voltage of the order of 2 V.
  • the transformer 1 may be connected to supply networks of different voltages.
  • the transformer secondary will have several sockets in order to adapt the voltage to the different types of diodes and thus adjust the value of the current which will pass through the diodes and determine their light emission.
  • the transformer 1 will be connected to the network via terminal 14, and terminal 15 or 16 depending on whether the supply voltage is 110 V or 220 V, the realization of such a transformer being known to those skilled in the art.
  • the diode supply circuit connected to the secondary terminals 2 and 3 of the transformer is advantageously constituted by a printed circuit on which the diode supply terminals are connected.
  • FIGS. 2 and 3 illustrate two printed circuits of light warning panels which use the mounting of the diodes according to the invention, FIG. 2 being relative to a traffic light, more particularly to a car repeater light, and FIG. 3 being related to a traffic sign for pedestrians and more precisely to the silhouette authorizing the passage of the latter.
  • the scope of the invention is in no way limited to these two types of printed circuit embodiment.
  • the printed circuit of an auto repeater light 18, according to FIG. 2, comprises a flat support 19 on which a circuit is printed electrical consisting of two separate branches which are each connected to the secondary terminals of the transformer. These branches 20 and 21 are distributed over the entire support and each have a certain number of connection terminals intended to receive the anodes and the cathodes of the light-emitting diodes.
  • connection terminals of the branch 20 is located near one of the terminals of the branch '21, for example of the terminal 23 and, the distance between the terminals 22 and 23 corresponds to the spacing between the diodes and the cathode of a diode 24, said diode being mounted perpendicular to the plane 19 of the printed circuit. More specifically, the diode 24 is placed such that its anode is connected to the terminal 22 and its cathode to the terminal 23. Near the terminals 22 and 23, are located two connection terminals, one 25 connected to the branch 21 , the other 26 connected to the branch 20.
  • the terminals 25 and 26 are respectively connected to the anode and to the cathode of a diode 27 placed in parallel and close to the diode 24.
  • the diodes carried by the circuit printed are mounted in parallel and can be grouped in pairs, the two diodes of the same pair being located close to each other and mounted upside down.
  • the printed circuit according to the invention is such that the connection terminals of the diodes of the same pair are arranged in the same orientation. Since the diodes generally have a sign which makes it easy to identify the anode of the cathode, for example a flat located on the head of the diode, this arrangement is particularly advantageous for the placement of the diodes on the printed circuit. .
  • the operator has the diodes according to the same orientation and the installation is all the faster.
  • the diodes will be distributed substantially on concentric circles 28, and two neighboring diodes for example 24 and 27, located on the same circle are arranged according to the same orientation ...
  • the printed circuit comprises two supply strips 29 and 30 which will be connected to the terminals 2 and 3 of the transformer. Terminal 30 being connected to branch 21.
  • FIG. 3 illustrates the printed circuit of a pedestrian signaling panel, more particularly, but not exclusively, the panel which authorizes the passage of pedestrians.
  • the circuit prints 33 are arranged the light emitting diodes according to the silhouette of the pedestrian, and they are connected to the circuit according to the principle which has been explained previously.
  • the printed circuit 33 comprises two separate branches 34 and 35, on which the terminals for connecting the diodes are distributed.
  • the invention will be better understood if one refers to one of the members of the silhouette, for example, the lower left member. This consists of two rows of diodes 36 and 37, arranged parallel to each other in the general direction of the member.
  • connection terminals of these two diodes are such that the latter are oriented substantially in the same direction.
  • This arrangement is particularly advantageous for mounting the diodes on a printed circuit and representing a silhouette, for example the circuit illustrated in FIG. 3. All the diodes located on the same member or on the body are oriented substantially in the same direction. This arrangement is also used for the realization of the head of the silhouette.
  • the luminous silhouette according to the invention is obtained by the alternating lighting of two luminous contours constituted by diodes placed in parallel and upside down, and the frequency of the alternations is such that the flickering is practically imperceptible at human eye.
  • the quality of the signal is all the better as the observer is far from the light panel.
  • the printed circuit according to the invention also has the advantage of being able to be produced on a single face of the support, as illustrated in FIGS. 2 and 3.
  • the diodes are placed on the side opposite to the printed circuit, the anodes and the cathodes pass through the support and they are soldered to the connection terminals. This greatly simplifies media printing operations, and, it allows cover with an anti-reflective film the surface of the support located on the side of the diodes, without covering part of the printed circuit.
  • the mounting of the diodes according to the invention can also be used in the case of a light signal constituted by several sets of diodes additionally defining a plurality of interpenetrated shapes. This is illustrated in FIG. 4 in the case of the same silh ⁇ uet- te 40 having a plurality of attitudes. Any two diodes, for example diodes 41 and 42, being part of the same set of light source and placed close to each other, are connected in parallel and upside down to ensure the continuity of the light signal formed by this game. Two neighboring diodes forming part of the same game are also arranged in the same orientation to facilitate the positioning of the diodes on the printed circuit.
  • the flickering of the diodes mounted according to the invention does not interfere with the successive attitudes of the silhouette which simulate a movement, since the latter is by its very nature perceptible to the human eye and its frequency is significantly lower than the flicker frequency of two diodes of the same pair.

Abstract

The invention relates to a luminous warning panel, in particular intended for roadway signalling. According to the invention, the luminous warning panel comprises light-emitting diodes (8) or (11), disposed in accordance with the form of luminous signal desired and an electrical supply circuit. It is characterised in that the voltage across the terminals of the diodes (8) and (11) is AC and that the diodes (8) and (11) are connected in parallel and head-to-tail in order, at any instant, to ensure the functioning of one half of the diodes. The invention will be particularly applicable in the construction of traffic lights and signalling panels intended for pedestrians. <IMAGE>

Description

L'invention est relative à un panneau avertisseur lumineux. Elle trouvera son application notamment dans le domaine de la signalisation, et plus particulièrement, mais non exclusivement, en matière de circulation routière pour la réalisation des feux tricolores et des panneaux lumineux réglant le passage des piétons.The invention relates to a light warning sign. It will find its application in particular in the field of signaling, and more particularly, but not exclusively, in terms of road traffic for the production of traffic lights and light panels regulating the passage of pedestrians.

Actuellement, il existe des panneaux de signalisation dont la source lumineuse est constituée par une pluralité de diodes électroluminescentes. -Ces panneaux de signalisation sont ordinairement reliés au réseau électrique de distribution qui fournit un courant alternatif. Or, les diodes électroluminescentes ne peuvent être traversées par un courant que dans un seul sens et t'émission de lumière ne peut se produire que pendant le passage du courant au travers de la diode. Par conséquent, il s'est posé le problème de l'alimentation électrique de ces panneaux utilisant des diodes électroluminescentes. En effet, il faut obligatoirement qu'à tout instant un certain nombre de diodes soient allumées afin que le signal lumineux apparaisse d'une manière continue dans le temps pour un oeil humain. En outre, les diodes sont conçues généralement par les constructeurs pour être traversées par un courant continu.Currently, there are traffic signs whose light source is constituted by a plurality of light-emitting diodes. These signs are usually connected to the electrical distribution network which supplies alternating current. Now, the light-emitting diodes can be crossed by a current only in one direction and the emission of light can only occur during the passage of the current through the diode. Consequently, the problem arose of the electrical supply of these panels using light-emitting diodes. Indeed, it is obligatory that at any time a certain number of diodes are lit so that the light signal appears continuously over time for a human eye. In addition, the diodes are generally designed by the manufacturers to be traversed by a direct current.

L'une des solutions consiste à placer dans le circuit d'alimentation, en plus du transformateur de tension, un redresseur de courant qui alimentera les diodes en courant continu, assurant ainsi une émission permanente de lumière par les diodes.One of the solutions consists in placing in the supply circuit, in addition to the voltage transformer, a current rectifier which will supply the diodes with direct current, thus ensuring a permanent emission of light by the diodes.

Il existe une autre solution qui consiste à alimenter séquen- tiellement en courant continu les diodes par groupe. Cette solution nécessite un dispositif complexe comprenant notamment un redresseur, une horloge, un compteur, binaire et des transistors de puissance. Toutefois, cette solution présente l'intérêt d'alimenter les diodes par un courant de crête élevé pendant une brève période, sans altérer leur durée de vie et, la fréquence de l'éclairage des diodes est telle que le scintillement est pratiquement imperceptible à l'oeil humain. Mais ce dispositif est trop onéreux pour.étre reproduit en grand nombre.There is another solution which consists in supplying the diodes sequentially with current in groups. This solution requires a complex device comprising in particular a rectifier, a clock, a counter, binary and power transistors. However, this solution has the advantage of supplying the diodes with a high peak current for a short period, without altering their lifespan and, the frequency of the lighting of the diodes is such that the flickering is practically imperceptible at l human eye. But this device is too expensive to be reproduced in large numbers.

Le but principal de la présente invention est de proposer un panneau avertisseur lumineux, comportant des diodes électrolumides- centes qui sont alimentées directement par une tension alternative, sans nécessiter la présence d'un redresseur et, autorisant à tout instant le fonctionnement de la moitié des diodes.The main object of the present invention is to provide a luminous warning panel, comprising light-emitting diodes which are supplied directly by an alternating voltage, without requiring the presence of a rectifier and, authorizing at any time the operation of half of the diodes.

A cet effet, les diodes sont branchées en parallèle et en tête-bêche sur le circuit d'alimentation électrique. A chaque alternance de la tension alternative, seule une moitié des diodes est conductrice et émet de la lumière. Dans le cas des réseaux électriques dont la fréquence est de 50 ou 60 Hertz, le scintillement est pratiquement imperceptible à l'oeil humain à cause de la persistance rétinienne.To this end, the diodes are connected in parallel and upside down on the electrical supply circuit. At each alter nance of the AC voltage, only half of the diodes are conductive and emit light. In the case of electrical networks whose frequency is 50 or 60 Hertz, the flicker is practically imperceptible to the human eye because of the retinal persistence.

Le montage en parallèle des diodes évite l'arrêt du fonctionnement du panneau même si une ou plusieurs diodes deviennent défaillantes. En effet, les courts-circuits permanents dans ces diodes sont impossibles du fait de leur structure interne et de la faible impédance du circuit d'alimentation ; une fonction semi-conductrice anormale se volatilise et sa mise hors circuit est automatique. De plus, par le montage par paire et en tête-bêche, on obtient une répartition uniforme de la lumière suivant la totalité de la forme du signal lumineux à transmettre car, au voisinage d'une diode montée dans un sens, il y a toujours au moins une diode montée dans l'autre sens.The parallel mounting of the diodes avoids stopping the operation of the panel even if one or more diodes become faulty. Indeed, permanent short circuits in these diodes are impossible due to their internal structure and the low impedance of the power supply circuit; an abnormal semiconductor function volatilizes and its deactivation is automatic. In addition, by pairwise and head-to-tail mounting, a uniform distribution of light is obtained along the entire shape of the light signal to be transmitted because, in the vicinity of a diode mounted in one direction, there is always at least one diode mounted in the other direction.

Un autre aspect de la présente invention est le montage auto-protecteur pour les diodes. En effet, les diodes qui ne sont pas conductrices pendant une alternance sont soumises à une tension inverse qui correspond à la tension résiduelle aux bornes de sdiodes conductrices à ce moment là, en général de l'ordre de 2 V. Cette tension inverse est compatible avec les caractéristiques des diodes, et elle ne peut donc pas s'accroître dangereusement pendant le fonctionnement du panneau lumineux.Another aspect of the present invention is the self-protecting arrangement for the diodes. In fact, the diodes which are not conductive during an alternation are subjected to a reverse voltage which corresponds to the residual voltage at the terminals of conductive sdiodes at this time, generally of the order of 2 V. This reverse voltage is compatible with the characteristics of the diodes, and therefore cannot increase dangerously during the operation of the light panel.

Les surtensions dûes aux secteurs sont écrétées symétriquement par l'ensemble des deux réseaux de diodes. A l'inverse des lampes à filaments, ces dindes peuvent supporter momentanément des surintensités élevées sans dommage.The overvoltages due to the sectors are symmetrically clipped by all of the two diode networks. Unlike filament lamps, these turkeys can temporarily withstand high overcurrents without damage.

En butre, à chaque instant, seule la moitié des diodes est conductrice et la consommation électrique globale correspond à la moitié de la consommation d'un panneau lumineux utilisant le même nombre de diodes montées toutes dans le même sens et alimentées en courant continu au moyen d'un redresseur.In abutment, at each instant, only half of the diodes is conductive and the overall electrical consumption corresponds to half of the consumption of a light panel using the same number of diodes all mounted in the same direction and supplied with direct current by means of a rectifier.

Un autre but de la présente invention est de proposer un'panneau avertisseur lumineux dont le circuit électrique est simplifié étant donné qu'il comporte uniquement un transformateur.Another object of the present invention is to provide a ' warning light panel whose electrical circuit is simplified since it only comprises a transformer.

De plus, les diodes émettent directement une lumière dont le spectre correspond aux couleurs retenues par le trafic routier ou l'usage public, ce qui supprime tous les dispositifs de filtres colorés, de diffusion, de focalisation ou de protection.In addition, the diodes directly emit light whose spectrum corresponds to the colors used by road traffic or public use, which eliminates all the colored filter devices, of diffusion, focusing or protection.

La lumière émise est donc transmise d'une manière optimale. L'angle de diffusion est défini par la forme convexe de l'emballage transparent de la diode. Suivant l'utilisation, différents modèles d'em- ballage peuvent être choisis pour produire des cônes de diffusion plus ou moins étroits.The light emitted is therefore transmitted in an optimal manner. The angle of diffusion is defined by the convex shape of the transparent packaging of the diode. Depending on the use, different packaging models can be chosen to produce more or less narrow distribution cones.

La partie convexe des diodes dépasse légèrement du panneau avant de l'avertisseur lumineux. Ce panneau peut être réalise en métal ou en matière plastique. Sa couleur extérieure sera de préférence noire matepour améliorer le contraste et éliminer les reflets parasites.The convex part of the diodes protrudes slightly from the front panel of the warning light. This panel can be made of metal or plastic. Its exterior color will preferably be matte black to improve contrast and eliminate stray reflections.

Ces deux dernières points importants ne peuvent pas être obtenus avec des faces avant lisses et transparentes.These last two important points cannot be obtained with smooth and transparent front panels.

En outre, lorsque ces panneaux avertisseurs lumineux munis de diodes apparentes sont exposés aux intempéries et aux poussières, la partie convexe des diodes ne peut jamais être totalement salie ou ' obscurcie.In addition, when these luminous warning signs provided with visible diodes are exposed to the weather and to dust, the convex part of the diodes can never be totally soiled or 'obscured.

Un autre avantage de l'invention est de proposer un panneau avertisseur lumineux comprenant notamment un circuit imprimé dont la fabrication a été simplifiée en autorisant l'impression de la totalité du circuit sur une seule face du support.Another advantage of the invention is to propose a light warning panel comprising in particular a printed circuit, the manufacture of which has been simplified by authorizing the printing of the entire circuit on a single face of the support.

Le panneau avertisseur lumineux destiné notamment à la signalisation routière, comportant des diodes électroluminescentes disposées selon la forme du signal lumineux souhaité, et un circuit d'alimentation électrique, est caractérisé par le fait que la tension aux bornes des diodes est alternative et que les diodes sont branchées en parallèle et en tête-bêche pour assurer à tout instant le fonctionnement ; d'une partie des diodes.The warning light panel intended in particular for road signs, comprising light-emitting diodes arranged in the form of the desired light signal, and an electrical supply circuit, is characterized in that the voltage across the diodes is alternating and that the diodes are connected in parallel and upside down to ensure operation at all times ; part of the diodes.

L'invention sera mieux comprise si l'on se réfère à la description ci-dessous ainsi qu'aux dessins en annexe qui en font partie intégrante.The invention will be better understood if reference is made to the description below and to the accompanying drawings which form an integral part thereof.

  • La figure 1 schématise le circuit d'alimentation électrique d'un panneau avertisseur lumineux selon l'invention.Figure 1 shows schematically the electrical supply circuit of a light warning panel according to the invention.
  • La figure 2 illustre le circuit imprimé d'un feu de circu- . lation utilisant le montage de diodes selon l'invention.FIG. 2 illustrates the printed circuit of a traffic light. lation using the diode arrangement according to the invention.
  • La figure 3 illustre le circuit imprimé d'un panneau lumineux réglant le passage des piétons, utilisant le montage de diodes selon l'invention.FIG. 3 illustrates the printed circuit of a light panel regulating the passage of pedestrians, using the assembly of diodes according to the invention.
  • La figure 4 illustre un panneau lumineux destiné au passage des piétons utilisant le montage des diodes selon l'invention.Figure 4 illustrates a light panel intended for passage pedestrians using the diode arrangement according to the invention.

La figure 1 schématise un circuit d'alimentation électrique d'un panneau avertisseur lumineux. Ce circuit comprend notamment un transformateur de tension 1 dont les bornes primaires sont reliées au réseau d'alimentation générale. Les bornes secondaires 2 et 3 du transformateur 1 sont reliées au circuit d'alimentation électrique du panneau lumineux, respectivement aux branches 4 et 5 de ce circuit d'alimentation , sur lesquelles'sont branchées en parallèle et en tête-bêche les diodes électroluminescentes disposées selon la forme du signal lumineux souhaité. Les diodes sont donc montées en parallèle entre les branches 4 et 5 du circuit et en tête-bêche, c'est-à-dire qu'elles sont regroupées par paires de diodes voisines l'une de l'autre, et que, dans une même paire, une diode est montée dans un sens et l'autre diode est montée dans l'autre sens.Figure 1 shows schematically an electrical supply circuit of a warning light panel. This circuit notably includes a voltage transformer 1, the primary terminals of which are connected to the general supply network. The secondary terminals 2 and 3 of the transformer 1 are connected to the electrical supply circuit of the light panel, respectively to the branches 4 and 5 of this supply circuit, to which the light-emitting diodes arranged in parallel and upside down depending on the shape of the desired light signal. The diodes are therefore mounted in parallel between branches 4 and 5 of the circuit and upside down, that is to say that they are grouped in pairs of diodes adjacent to each other, and that, in the same pair, one diode is mounted in one direction and the other diode is mounted in the other direction.

La figure 1 schématise, à titre d'exemple, deux paires de diodes 6 et 7 montées selon l'invention. Mais, cette illustration ne saurait limiter en aucun cas le nombre de paires de diodes à une valeur déterminée.Figure 1 shows schematically, by way of example, two pairs of diodes 6 and 7 mounted according to the invention. However, this illustration should in no case limit the number of pairs of diodes to a determined value.

Chaque paire de diodes, par exemple les diodes 6 et 7, comprennent une diode électroluminescente 8 dont l'anode 9 est reliée à la branche 4 du circuit d'alimentation, et dont la cathode-10 est reliée à la branche 5 du même circuit, et une diode électroluminescente 11 dont l'anode 12 est reliée à la branche 5, et dont la cathode 13 est reliée à la branche 4 du circuit d'alimentation. Pendant une alternance du courant alternatif où le potentiel de la branche 4 est supérieur au potentiel de la branche 5, la diode 8 dont l'anode 9 est à un potentiel supérieur à la cathode 10, est traversée par un courant et émet de la lumière. Par contre, la diode 11 dont la cathode 13 est à un potentiel supérieur à l'anode 12 n'est pas conductrice pendant cette même alternance. Au cours de l'alternance suivante, le potentiel de la branche 5 devient supérieur au potentiel de la branche 4 et la diode 11 devient conductrice alors que la diode 8 ne l'est plus.Each pair of diodes, for example diodes 6 and 7, comprise a light-emitting diode 8 whose anode 9 is connected to branch 4 of the supply circuit, and whose cathode-10 is connected to branch 5 of the same circuit , and a light emitting diode 11 whose anode 12 is connected to branch 5, and whose cathode 13 is connected to branch 4 of the supply circuit. During alternating alternating current where the potential of the branch 4 is greater than the potential of the branch 5, the diode 8 whose anode 9 is at a potential greater than the cathode 10, is crossed by a current and emits light . On the other hand, the diode 11 whose cathode 13 is at a potential greater than the anode 12 is not conductive during this same alternation. During the next alternation, the potential of the branch 5 becomes greater than the potential of the branch 4 and the diode 11 becomes conductive while the diode 8 is no longer.

Dans le montage selon l'invention, la tension aux bornes des diodes 8 et 11 est bien alternative et, à tout instant, il y a des diodes conductrices, soit les diodes branchées comme la diode 8, soit les diodes branchées comme la diode 11. Par ailleurs, il ne présente aucun inconvénient d'alimenter en courant alternatif des diodes électroluminescentes prévues par le constructeur pour fonctionner sous une tension continue.In the assembly according to the invention, the voltage at the terminals of diodes 8 and 11 is indeed alternative and, at all times, there are conductive diodes, either the diodes connected like diode 8, or the diodes connected like diode 11 Furthermore, it does not have any drawback of supplying alternating current to light-emitting diodes provided by the manufacturer to operate under direct voltage.

dans la mesure où les tensions inverses et les courants sont compatibles avec les caractéristiques des dites diodes. Cela est bien réalisé dans le présent montage, car la tension inverse aux bornes de la diode 11 est égale à la tension de fonctionnement de la diode 8 montée en sens inverse, généralement de l'ordre de 2 V pour le type de diode utilisée pour la réalisation de panneaux lumineux.insofar as the reverse voltages and currents are compatible with the characteristics of said diodes. This is well done in the present assembly, because the reverse voltage across the terminals of the diode 11 is equal to the operating voltage of the diode 8 mounted in the opposite direction, generally of the order of 2 V for the type of diode used for the creation of light panels.

Un panneau selon l'invention comportera un nombre élevé de diodes et la défaillance d'une ou de plusieurs d'entre elles aura une influence négligeable su r le fonctionnement du circuit. En effet, une diode défaillante se volatise immédiatement et l'impédance du circuit secondaire ne varie pratiquement pas étant donné le grand nombre de diodes montées en parallèle. De plus, ce montage, auto-protecteur pour les diodes, nécessite une très basse tension entre les bornes secondaires 2 et 3 du transformateur puisque celles-ci sont directement reliées aux bornes des diodes qui nécessitent une tension de l'ordre de 2 V.A panel according to the invention will include a high number of diodes and the failure of one or more of them will have a negligible influence on the operation of the circuit. Indeed, a faulty diode immediately volatilizes and the impedance of the secondary circuit practically does not vary given the large number of diodes connected in parallel. In addition, this assembly, self-protective for the diodes, requires a very low voltage between the secondary terminals 2 and 3 of the transformer since these are directly connected to the terminals of the diodes which require a voltage of the order of 2 V.

Dans un mode préférentiel de réalisation, le transformateur 1 pourra être relié à des réseaux d'alimentation de différentes tensions. Le secondaire du transformateur comportera plusieurs prises afin d'adapter la tension aux différents types de diodes et régler ainsi la valeur du courant qui passera dans les diodes et déterminera leur-émission lumineuse. Notamment, dans le cas de la FRANCE, le transformateur 1 sera relié au réseau par l'intermédiaire de la borne 14, et de la borne 15 ou 16 suivant quela tension d'alimentation est de 110 V ou de 220 V, la réalisation d'un tel transformateur étant connu de l'Homme de l'Art.In a preferred embodiment, the transformer 1 may be connected to supply networks of different voltages. The transformer secondary will have several sockets in order to adapt the voltage to the different types of diodes and thus adjust the value of the current which will pass through the diodes and determine their light emission. In particular, in the case of FRANCE, the transformer 1 will be connected to the network via terminal 14, and terminal 15 or 16 depending on whether the supply voltage is 110 V or 220 V, the realization of such a transformer being known to those skilled in the art.

, Le circuit d'alimentation des diodes relié aux bornes secondaires 2 et 3 du transformateur, est avantageusement constitué par un circuit imprimé sur lequel sont branchées les bornes d'alimentation des diodes. Les figures 2 et 3 illustrent deux circuits imprimés de panneaux avertisseurs lumineux qui utilisent le montage des diodes selon l'invention, la figure 2 étant relative à un feu de circulation, plus particulièrement à un feu répétiteur auto, et la figure 3 étant relative à un panneau de signalisation pour les piétons et plus précisément à la silhouette autorisant le passage de ces derniers. Toutefois, la portée de l'invention n'est en aucun cas limitée à ces deux types de réalisation de circuit imprimé., The diode supply circuit connected to the secondary terminals 2 and 3 of the transformer, is advantageously constituted by a printed circuit on which the diode supply terminals are connected. FIGS. 2 and 3 illustrate two printed circuits of light warning panels which use the mounting of the diodes according to the invention, FIG. 2 being relative to a traffic light, more particularly to a car repeater light, and FIG. 3 being related to a traffic sign for pedestrians and more precisely to the silhouette authorizing the passage of the latter. However, the scope of the invention is in no way limited to these two types of printed circuit embodiment.

Le circuit imprimé d'un feu répétiteur auto 18, selon la figure 2, comprend un support plan 19 sur lequel est imprimé un circuit électrique constitué par deux branches disjointes qui sont reliées chacune aux bornes secondaires du transformateur. Ces branches 20 et 21 sont réparties sur l'ensemble du support et présentent chacune un certain nombre de bornes de raccordement destinées à recevoir les anodes et les cathodes des diodes électroluminescentes.The printed circuit of an auto repeater light 18, according to FIG. 2, comprises a flat support 19 on which a circuit is printed electrical consisting of two separate branches which are each connected to the secondary terminals of the transformer. These branches 20 and 21 are distributed over the entire support and each have a certain number of connection terminals intended to receive the anodes and the cathodes of the light-emitting diodes.

L'une quelconque des bornes de raccordement dela branche 20, par exemple la borne 22, est située à proximité de l'une des bornes de la branche '21, par exemple de la borne 23 et, la distance entre les bornes 22 et 23 correspond à l'écartement entre les diodes et la cathode d'une diode 24, la dite diode étant montée perpendiculairement au plan 19 du circuit imprimé. Plus précisément, la diode 24 est placée telle que son anode soit reliée à la borne 22 et sa cathode à la borne 23. A proximité des bornes 22 et 23, sont situées deux bornes de raccordement, l'une 25 reliée à la branche 21, l'autre 26 reliée à la branche 20. Les bornes 25 et 26 sont respectivement reliées à l'anode et à la cathode d'une diode 27 placée parallèlement et à proximité de la diode 24. Ainsi, les diodes portées par le circuit imprimé sont montées en parallèle et peuvent être regroupées par paires, les deux diodes d'une même paire étant situées à proximité l'une de l'autre et montées en tête-bêche.Any of the connection terminals of the branch 20, for example the terminal 22, is located near one of the terminals of the branch '21, for example of the terminal 23 and, the distance between the terminals 22 and 23 corresponds to the spacing between the diodes and the cathode of a diode 24, said diode being mounted perpendicular to the plane 19 of the printed circuit. More specifically, the diode 24 is placed such that its anode is connected to the terminal 22 and its cathode to the terminal 23. Near the terminals 22 and 23, are located two connection terminals, one 25 connected to the branch 21 , the other 26 connected to the branch 20. The terminals 25 and 26 are respectively connected to the anode and to the cathode of a diode 27 placed in parallel and close to the diode 24. Thus, the diodes carried by the circuit printed are mounted in parallel and can be grouped in pairs, the two diodes of the same pair being located close to each other and mounted upside down.

Le circuit imprimé selon l'invention est tel que les bornes de raccordement des diodes d'une même paire sont disposées selon la même orientation. Etant donné que les diodes comportent généralement un signe qui permet d'identifier facilement l'anode de la cathode, par exemple un méplat situé sur la tête de la diode, cette disposition est particulièrement intéressante pour la mise en place des diodes sur le circuit imprimé. L'opérateur dispose les diodesselon la même orientation et la mise en place en est d'autant plus rapide. En-particulier, dans le cas d'un circuit imprimé utilisé pour un feu de signalisation,-les diodes seront réparties sensiblement sur des cercles concentriques 28, et deux diodes voisines par exemple 24 et 27, situées sur un même cercle sont disposées selon la même orientation...The printed circuit according to the invention is such that the connection terminals of the diodes of the same pair are arranged in the same orientation. Since the diodes generally have a sign which makes it easy to identify the anode of the cathode, for example a flat located on the head of the diode, this arrangement is particularly advantageous for the placement of the diodes on the printed circuit. . The operator has the diodes according to the same orientation and the installation is all the faster. In particular, in the case of a printed circuit used for a signaling light, the diodes will be distributed substantially on concentric circles 28, and two neighboring diodes for example 24 and 27, located on the same circle are arranged according to the same orientation ...

En outre, le circuit imprimé comporte deux bandes d'alimén- tation 29 et 30 qui seront mises en liaison avec les bornes 2 et 3 du transformateur. La borne 30 étant reliée à la branche 21.In addition, the printed circuit comprises two supply strips 29 and 30 which will be connected to the terminals 2 and 3 of the transformer. Terminal 30 being connected to branch 21.

La figure 3 illustre le circuit imprimé d'un panneau de signalisation pour piétons, plus particulièrement, mais non exclusivement le panneau qui autorise le passage des piétons. Sur le circuit imprime 33 sont disposées les diodes électroluminescentes suivant la silhouette du piéton, et elles sont branchées sur le circuit selon le principe qui a été exposé précédemment. Le circuit imprimé 33 comprend deux branches disjointes 34 et 35, sur lesquelles sont réparties les bornes de raccordement des diodes. L'invention sera mieux comprise si l'on se réfère à l'un des membres de la silhouette, par exemple, le membre inférieur gauche. Celui-ci est constitué par deux rangées de diodes 36 et 37, disposées parallèlement entre elles selon la direction générale du membre. Toutes les diodes de la rangée 36 sont branchées en parallèle et dans le même sens, les anodes étant reliées à 34, les cathodes étant réliées à 35, par contre, les diodes de la rangée 37 sont montées en parallèle mais toutes en sens inverse, les anodes étant reliées à 35, et les cathodes étant reliées à 34. Par conséquent, au cours d'une alternance, l'une des rangées est éclairée alors que l'autre ne l'est pas. Cette disposition est également valable pour les autres membres et le corps de la silhouette.FIG. 3 illustrates the printed circuit of a pedestrian signaling panel, more particularly, but not exclusively, the panel which authorizes the passage of pedestrians. On the circuit prints 33 are arranged the light emitting diodes according to the silhouette of the pedestrian, and they are connected to the circuit according to the principle which has been explained previously. The printed circuit 33 comprises two separate branches 34 and 35, on which the terminals for connecting the diodes are distributed. The invention will be better understood if one refers to one of the members of the silhouette, for example, the lower left member. This consists of two rows of diodes 36 and 37, arranged parallel to each other in the general direction of the member. All the diodes of row 36 are connected in parallel and in the same direction, the anodes being connected to 34, the cathodes being connected to 35, on the other hand, the diodes of row 37 are mounted in parallel but all in opposite directions, the anodes being connected to 35, and the cathodes being connected to 34. Consequently, during an alternation, one of the rows is lit while the other is not. This provision is also valid for the other members and the body of the silhouette.

Plus précisément, si l'on considère deux diodes 38 et 39 situées respectivement sur la rangée 36, et sur la rangée 37, les bornes de raccordement de ces deux diodes, sont telles que ces dernières sont orientées sensiblement suivant une même direction. Cette disposition est particulièrement intéressante pour le montage des diodes sur un circuit imprimé et représentant une silhouette, par exemple le circuit illustré à la figure 3. Toutes les diodes situées sur un même membre ou sur le corps sont orientées sensiblement suivant la même direction. Cette disposition est également utilisée pour la réalisation de la tête de la silhouette.More precisely, if we consider two diodes 38 and 39 located respectively on row 36, and on row 37, the connection terminals of these two diodes are such that the latter are oriented substantially in the same direction. This arrangement is particularly advantageous for mounting the diodes on a printed circuit and representing a silhouette, for example the circuit illustrated in FIG. 3. All the diodes located on the same member or on the body are oriented substantially in the same direction. This arrangement is also used for the realization of the head of the silhouette.

La silhouette lumineuse selon l'invention,,est obtenue par l'éclairage en alternance de deux contours lumineux constitués par des diodes placés en parallèle et en tête-bêche, et la fréquence des alternances est telle que le scintillement est pratiquement imperceptible à l'oeil humain. La qualité du signal est d'autant meilleure que l'observateur est éloigné du panneau lumineux.The luminous silhouette according to the invention, is obtained by the alternating lighting of two luminous contours constituted by diodes placed in parallel and upside down, and the frequency of the alternations is such that the flickering is practically imperceptible at human eye. The quality of the signal is all the better as the observer is far from the light panel.

Le circuit imprimé selon l'invention, présente également l'intérêt de pouvoir être réalisé sur une seule face du support, comme cela a été illustré aux figures 2 et 3. Les diodes sont placées du côté opposé au circuit imprimé, les anodes et les cathodes traversent le support et elles sont soudées sur les bornes de raccordement. Cela simplifie considérablement les opérations d'impression du support, et, cela permet de recouvrir d'une pellicule anti-reflet la surface du support située du côté des diodes, sans recouvrir une partie du circuit imprimé.The printed circuit according to the invention also has the advantage of being able to be produced on a single face of the support, as illustrated in FIGS. 2 and 3. The diodes are placed on the side opposite to the printed circuit, the anodes and the cathodes pass through the support and they are soldered to the connection terminals. This greatly simplifies media printing operations, and, it allows cover with an anti-reflective film the surface of the support located on the side of the diodes, without covering part of the printed circuit.

Le montage des diodes selon l'invention peut également être utilisé dans le cas d'un signal lumineux constitué par plusieurs jeux de diodes définissant complémentairement une pluralité de formes interpénétrées. Cela est illustré à la figure 4 dans le cas d'une même silhúuet- te 40 présentant une pluralité d'attitudes. Deux diodes quelconques par exemple les diodes 41 et 42, faisant partie du même jeu de source lumineuse et placées à proximité l'une de l'autre, sont branchées en parallèle et en tête-bêche pour assurer la continuité du signal lumineux constitué par ce jeu. Deux diodes voisines faisant partie d'un même jeu sont également disposées selon la même orientation pour faciliter la mise en place des diodes sur les circuit imprimé. Par ailleurs, le scintillement des diodes montées selon l'invention, pratiquement imperceptible à l'oeil humain, n'interfère pas avec les attitudes successives de la silhouette qui simulent un mouvement, car celui-ci est par nature même, perceptible à l'oeil humain et sa fréquence est notablement plus faible que la fréquence de scintillement de deux diodes d'une même paire.The mounting of the diodes according to the invention can also be used in the case of a light signal constituted by several sets of diodes additionally defining a plurality of interpenetrated shapes. This is illustrated in FIG. 4 in the case of the same silhúuet- te 40 having a plurality of attitudes. Any two diodes, for example diodes 41 and 42, being part of the same set of light source and placed close to each other, are connected in parallel and upside down to ensure the continuity of the light signal formed by this game. Two neighboring diodes forming part of the same game are also arranged in the same orientation to facilitate the positioning of the diodes on the printed circuit. Furthermore, the flickering of the diodes mounted according to the invention, practically imperceptible to the human eye, does not interfere with the successive attitudes of the silhouette which simulate a movement, since the latter is by its very nature perceptible to the human eye and its frequency is significantly lower than the flicker frequency of two diodes of the same pair.

Claims (5)

1. Panneau avertisseur lumineux destiné notamment â la signalisation routière, comportant des diodes électroluminescentes (8) et (11), disposées selon la forme du signal lumineux souhaité, et un circuit d'alimentation électrique, caractérisé par le fait que la tension aux bornes des diodes. (8) et (11) est alternative et que les diodes (8) et (11) sont branchées en parallèle et en tête-bêche pour assurer à tout instant le fonctionnement d'une partie des diodes.1. Warning sign intended in particular for road signs, comprising light-emitting diodes (8) and (11), arranged in the form of the desired light signal, and an electrical supply circuit, characterized in that the voltage across the terminals diodes. (8) and (11) is alternative and that the diodes (8) and (11) are connected in parallel and upside down to ensure at all times the operation of part of the diodes. 2. Panneau avertisseur lumineux selon la revendication 1, caractérisé par le fait que le circuit d'alimentation électrique comprend notamment un circuit imprimé (18) sur lequel les diodes (24) et (27) sont montées et que, pour toute paire de diodes (24) et (27) branchées en tête-bêche, les diodes (24) et (27) sont disposées sur le circuit imprimé (18) selon la même orientation.2. warning light panel according to claim 1, characterized in that the electrical supply circuit comprises in particular a printed circuit (18) on which the diodes (24) and (27) are mounted and that, for any pair of diodes (24) and (27) connected head to tail, the diodes (24) and (27) are arranged on the printed circuit (18) in the same orientation. 3. Panneau avertisseur lumineux selon la revendication 2, caractérisé par le fait qu'une borne de raccordement (22) du circuit imprimé (18) avec l'anode, respectivement la cathode, d'une diode (24) est au même potentiel électrique que la borne (25) de raccordement du circuit imprimé (18) avec la cathode, respectivement l'anode, de la diode (27) branchée en tête-bêche avec la première diode (24).3. Warning light panel according to claim 2, characterized in that a connection terminal (22) of the printed circuit (18) with the anode, respectively the cathode, of a diode (24) is at the same electrical potential as the terminal (25) for connecting the printed circuit (18) with the cathode, respectively the anode, of the diode (27) connected head to tail with the first diode (24). 4. Panneau avertisseur lumineux selon l'une des revendica- ; tions 2 ou 3, caractérisé par le fait que le circuit imprimé (18) est disposé sur un support plan (19) et entièrement situé sur une face de 1 celui-ci.4. Warning sign according to one of the claims ; tions 2 or 3, characterized in that the printed circuit (18) is arranged on a flat support (19) and entirely located on one side thereof. 5. Panneau avertisseur lumineux selon l'une quelconque des revendications précédentes, caractérisé par le fait que le circuit d'alimentation électrique comporte uniquement un transformateur de tension (1).5. Warning light panel according to any one of the preceding claims, characterized in that the electrical supply circuit only comprises a voltage transformer (1).
EP83440042A 1982-09-02 1983-07-19 Diode mounting arrangement Withdrawn EP0105818A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8215208 1982-09-02
FR8215208A FR2532809B1 (en) 1982-09-02 1982-09-02 MOUNTING OF DIODES

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588109A1 (en) * 1985-10-02 1987-04-03 Valancogne Pierre Light-signalling device
FR2613858A1 (en) * 1987-04-09 1988-10-14 Garbarini Sa A Road traffic signal light element
FR2643209A1 (en) * 1989-02-14 1990-08-17 Catu Ets Portable luminous signalling apparatus
EP1970195A1 (en) * 2007-03-14 2008-09-17 AGC Flat Glass Europe SA Method for supplying electricity to an electronic component of a laminated window, laminated window for implementing said method and installation comprising a laminated window
WO2008149268A1 (en) * 2007-06-04 2008-12-11 Koninklijke Philips Electronics N.V. Light output device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266235A1 (en) * 1974-03-29 1975-10-24 Siemens Ag Centralised police or fire alarm system - uses hand-operated alarm connected via conductor loop with receiving station
DE2941634A1 (en) * 1978-10-17 1980-04-30 Stanley Electric Co Ltd COLORED LIGHT-EMITTING DISPLAY DEVICE
US4298869A (en) * 1978-06-29 1981-11-03 Zaidan Hojin Handotai Kenkyu Shinkokai Light-emitting diode display

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2266235A1 (en) * 1974-03-29 1975-10-24 Siemens Ag Centralised police or fire alarm system - uses hand-operated alarm connected via conductor loop with receiving station
US4298869A (en) * 1978-06-29 1981-11-03 Zaidan Hojin Handotai Kenkyu Shinkokai Light-emitting diode display
DE2941634A1 (en) * 1978-10-17 1980-04-30 Stanley Electric Co Ltd COLORED LIGHT-EMITTING DISPLAY DEVICE

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2588109A1 (en) * 1985-10-02 1987-04-03 Valancogne Pierre Light-signalling device
FR2613858A1 (en) * 1987-04-09 1988-10-14 Garbarini Sa A Road traffic signal light element
FR2643209A1 (en) * 1989-02-14 1990-08-17 Catu Ets Portable luminous signalling apparatus
EP1970195A1 (en) * 2007-03-14 2008-09-17 AGC Flat Glass Europe SA Method for supplying electricity to an electronic component of a laminated window, laminated window for implementing said method and installation comprising a laminated window
WO2008113723A1 (en) * 2007-03-14 2008-09-25 Agc Flat Glass Europe Sa Method for the power supply of an electronic component in a laminated glazing, laminated glazing implementing said method, and equipment including a laminated glazing
EA015546B1 (en) * 2007-03-14 2011-08-30 Агк Гласс Юроп Method for the power supply of an electronic component in a laminated glazing
WO2008149268A1 (en) * 2007-06-04 2008-12-11 Koninklijke Philips Electronics N.V. Light output device
US8227999B2 (en) 2007-06-04 2012-07-24 Koninklijke Philips Electronics N.V. Light output device

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FR2532809A1 (en) 1984-03-09

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